Sedimentary Features and Significance of Interdune Deposits

Ahlbrandt, Thomas S.; Fryberger, Steven G.

doi:10.2110/pec.81.31.0293

Cited by 76 publications

(58 citation statements)

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“…An interdune depression is commonly enclosed or partly bounded by eolian dunes or sand sheets (Ahlbrandt and Fryberger 1981). Several of the facies in the Olympia and Payson outcrops, as well as the base of the upper unit of Yavapai, are indicative of a damp to wet interdune environment (Figs.…”

Section: Interdunementioning

confidence: 99%

Sulfate-Rich Eolian and Wet Interdune Deposits, Erebus Crater, Meridiani Planum, Mars

Metz

Grotzinger

Rubin

et al. 2009

Journal of Sedimentary Research

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This study investigates three bedrock exposures at Erebus crater, an , 300 m diameter crater approximately 4 km south of Endurance crater on Mars. These outcrops, called Olympia, Payson, and Yavapai, provide additional evidence in support of the dune-interdune model proposed for the formation of the deposits at the Opportunity landing site in Meridiani Planum. There is evidence for greater involvement of liquid water in the Olympia outcrop exposures than was observed in Eagle or Endurance craters. The Olympia outcrop likely formed in a wet interdune and sand sheet environment. The facies observed within the Payson outcrop, which is likely stratigraphically above the Olympia outcrop, indicate that it was deposited in a damp-wet interdune, sand sheet, and eolian dune environment. The Yavapai outcrop, which likely stratigraphically overlies the Payson outcrop, indicates that it was deposited in primarily a sand sheet environment and also potentially in an eolian dune environment. These three outcrop exposures may indicate an overall drying-upward trend spanning the stratigraphic section from its base at the Olympia outcrop to its top at the Yavapai outcrop. This contrasts with the wetting-upward trend seen in Endurance and Eagle craters. Thus, the series of outcrops seen at Meridiani by Opportunity may constitute a full climatic cycle, evolving from dry to wet to dry conditions.

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Section: Interdunementioning

confidence: 99%

Sulfate-Rich Eolian and Wet Interdune Deposits, Erebus Crater, Meridiani Planum, Mars

Metz

Grotzinger

Rubin

et al. 2009

Journal of Sedimentary Research

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“…Aeolian facies is commonly featured as widespread occurrence and good reservoir properties, which usually make aeolian sandstones attractive exploration targets [34]. In the Ardmore field, the reservoir quality of volumetrically major fluvial sandstones was significantly suffered by cementation of extensive quartz overgrowths and authigenic dolomites [1], porosity ranges from 6% to 24%, but permeability never exceeded 300 mD (Figure 10(A)).…”

Section: Significance Of Identifying Aeolian Depositsmentioning

confidence: 99%

Facies Architecture of the Fluvial-Aeolian Buchan Formation (Upper Devonian) and Its Implications on Field Exploration: A Case Study from Ardmore Field, Central North Sea, UK

Tang¹,

Jones²,

Gluyas³

2017

IJG

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The Upper Devonian Buchan Formation in the Central North Sea is a typical terrestrial deposit and predominantly comprises fine to medium-grained sandstones with occasional conglomerates and mudstones. The Buchan Formation has been previously described as being made up mostly of braided fluvial sandstones; however, this study confirms the presence and significance of aeolian sandstones within this fluvial-dominated sequence. Facies architecture is investigated through analogue outcrop study, well log curves and numerical facies modelling, and the results show contrasting differences between fluvial and aeolian facies. The fluvial facies is composed of multiple superimposed and sand-dominated fining-upward cycles in the vertical direction, and laterally an individual cycle has a large width/thickness ratio but is smaller than the field scale. However, the high channel deposition proportion (CDP, average value = 72%) in fluvial-dominated intervals means that it is likely all the sand bodies are interconnected. Aeolian facies comprise superimposed dune and interdune depositions and can be laterally correlated over considerable distances (over 1 km). Although the aeolian sandstones are volumetrically minor (approx. 30%) within the whole Buchan Formation, they have very high porosity and permeability (14.1% -28%, 27 -5290 mD) and therefore are excellent potential reservoirs. The fluvial sandstones are significantly cemented by quartz overgrowth and dolomite and by comparison with the aeolian sandstones are poor reservoirs. Aeolian sandstones can be differentiated from fluvial sandstones using several features: pin-stripe lamentation, good sorting, high visible porosity, friable nature and lack of muddy or conglomeratic contents; these characteristics allow aeolian sandstones can be tentatively recognized by low gamma ray values, high sonic transit time and low density

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“…Interdune deposits are sediments that occur in the interdune areas and may record either deflationary or depositional processes. Recent work by Ahlbrandt andFryberger ( 1981 , 1982) and Kocurek (1981) on modem and ancient eolian systems has recognized the relationship of water content to the types of sedimentary structures formed in interdunes. They have informally subdivided depositional and deflationary interdunes into dry, damp, wet, and evaporite on this basis.…”

Section: Interdune Depositsmentioning

confidence: 99%

“…According to Ahlbrandt and Fryberger (1981), interdune geometries appear to be closely related to wind regime, and interdunes from unimodal wind regimes are thought to be thin and lenticular.…”

Section: Interdune Depositsmentioning

confidence: 99%

See 1 more Smart Citation

Depositional environments of the White Rim Sandstone Member of the Permian Cutler Formation, Canyonlands National Park, Utah

Steele¹

1987

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Sedimentary Features and Significance of Interdune Deposits

Cited by 76 publications

References 0 publications

Sulfate-Rich Eolian and Wet Interdune Deposits, Erebus Crater, Meridiani Planum, Mars

Sulfate-Rich Eolian and Wet Interdune Deposits, Erebus Crater, Meridiani Planum, Mars

Facies Architecture of the Fluvial-Aeolian Buchan Formation (Upper Devonian) and Its Implications on Field Exploration: A Case Study from Ardmore Field, Central North Sea, UK

Depositional environments of the White Rim Sandstone Member of the Permian Cutler Formation, Canyonlands National Park, Utah

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